lopez. >> i'm very nervous, because there's new judges, and i don't know i love jennifer lopez so i'm really scared to go in front of her. >> hopefully steven tyler digs me. i'm going to sing one of his tunes and j-lo has got my style. >> i'm beyond excited. >> reporter: for the judges optimism was the only ray of sunshine on this cloudy day. >> the chemistry will be there. i've known both jennifer and steven a long time individually so i think it's going to be really really cool, man and listen they are so super-stoked and charged to do this so i think it's going to be fun. >> it's just talking to kids that come here with a dream and a wish to do something and me just saying hey you know what you're great. >> reporter: more than 100 contestants set to show the judges what they've got the waiting was getting the best of them. >> i think i am nervous. the first round this time wasn't as unnerving because i've done it before, the second round whatever, but this one is like it's new judges